diff --git a/common.sh b/common.sh
index 5be9ddb..c6cb57f 100644
--- a/common.sh
+++ b/common.sh
@@ -49,6 +49,7 @@ f5m_install() {
 
 f5m_make_tarball() {
   cd $DESTDIR$INSTALL_PREFIX
+  python $ROOT/generate-descriptor.py
   tar cjvf ../../../$name-$ARCH.tar.bz2 *
 }
 
diff --git a/fix-cross-build.sh b/fix-cross-build.sh
index 68101ff..059512e 100755
--- a/fix-cross-build.sh
+++ b/fix-cross-build.sh
@@ -15,7 +15,9 @@ for package in "${broken_packages[@]}"; do
   cross_pkg=$package-arm64.tar.bz2
   mkdir $tmp_dir
   tar xjvf $native_pkg -C $tmp_dir
+  mv $tmp_dir/plugin/$package.json{,.bak}
   tar xjvf $cross_pkg -C $tmp_dir
+  mv $tmp_dir/plugin/$package.json{.bak,}
   cd $tmp_dir
   tar cjvf $ROOT/$cross_pkg *
   cd $ROOT
diff --git a/generate-descriptor.py b/generate-descriptor.py
new file mode 100644
index 0000000..2eaaed5
--- /dev/null
+++ b/generate-descriptor.py
@@ -0,0 +1,16 @@
+import json
+import os
+
+cwd = os.getcwd()
+plugin = cwd.split("/")[-3] # /path/to/rime/tmp/fcitx5
+files: list[str] = []
+
+for dirpath, _, filenames in os.walk(os.getcwd()):
+    for filename in filenames:
+        files.append(f"{dirpath[len(cwd) + 1:]}/{filename}")
+
+os.makedirs("plugin", exist_ok=True)
+with open(f"plugin/{plugin}.json", "w") as f:
+    json.dump({
+        "files": files
+    }, f)